
Physics used to be philosophy.
For centuries, natural philosophy covered physics, chemistry, and biology. Newton even titled his masterwork Philosophiæ Naturalis Principia Mathematica—"Mathematical Principles of Natural Philosophy."Philosophy: When Science Was 'Natural Philosophy'
![Aristotle was a major figure in ancient philosophy and developed a comprehensive system of thought including metaphysics, logic, ethics, politics, and natural science.[42]](https://cdn.deepswipe.app/images/0.2.0/6029fe4895cab71fd58cc60bf07c38270dfd269cf247eb6f035caf44650093c1.jpg)
Then the split.
As fields matured, they broke off from philosophy. The term gained a narrower meaning focused on metaphysics, epistemology, and ethics.Philosophy: When Science Was 'Natural Philosophy'